question_answer 43)

  In which part of the alimentary canal food is finally digested? (a) Stomach                        (b) Mouth cavity              (c) Large intestine            (d) Small intestine

Answer:

                  (d) The small intestine in human beings is the site of complete digestion of food. It is also the main region for absorption of digested food. However, digestion begins in the mouth cavity, food is further digested in stomach to form a semi-solid paste. The undigested food from small intestine passes into large intestine that absorb most of the water.